What causes hives to break out?

Answer 1

stress

Answer 2

Hives are the body's response to some stress. Most of the time they appear after coming in contact with something your allergic or hypersensitive to this is a physical stressor, but it is not uncommon for you to break out in hives as a result of a stress in your life, this is a pyschosomatic stressor.

Answer 3

you can go to this site and read what it said.but i copy it here for u.
What causes hives?
Hives show up when the body releases a chemical called histamine. There are so many reasons this might happen that you may have trouble identifying the culprit, but here are the most likely possibilities:
• Insect bites and stings. If your child is allergic to bees or fire ants, for example, he may develop hives in reaction to being stung or bitten.

• Food. Your child might get hives in reaction to something he eats. The most likely foods to offend are tree nuts, peanuts, eggs, shellfish, chocolate, fish, milk, fresh or frozen berries, tomatoes, and certain food additives and preservatives. He may break out in hives because he's allergic to the protein in the food, or simply because his body reacts to a chemical in the food by releasing histamine. Some children even develop hives simply from coming into contact with certain foods — for example, when the juice from a strawberry gets on their skin. (Surprisingly, those very kids might not react to eating strawberries.)

• Allergens. Children who have developed an allergy to cats may also break out in hives when they touch the kitty. Your toddler may even get hives from an allergen in the air, like pollen.

• Illness. Your child might get hives when he has a cold or other viral infection. Less commonly, he may get hives from a bacterial infection.

• Temperature. Sometimes cold temperatures can cause hives. The same goes for a sudden change in temperature — when your child's skin warms up quickly after being cold, for example.

• Drugs. Antibiotics and some other medications might cause your child to break out in hives.

How should I treat hives?
If you think your child has broken out in hives because of a pet or pollen allergy, give him a bath to rinse away as much of the allergen as possible. Cool compresses — and cool baths — sometimes provide relief. You might also try dabbing the hives with calamine lotion on a cotton ball.

Avoid dressing your child in clothing that's snug in the area where he has hives. If you can identify the cause of the hives, do your best to keep your child from being exposed to it in the future.

If hives are making your child is uncomfortable, you can give him the appropriate dose of an oral antihistimine (such as over-the-counter Benadryl) to reduce the itching and swelling.

Answer 4

Allergic Reactions to different things, nerves, some insects and some medications. I get hives from allergies, my nerves, codeine and when bitten by some insects. If you have sensitive skin there are also some products that will give you hives, strong soaps and other products.

Answer 5

It's usually that one bad hive who convinces the rest to make a break for it, then they're out and it's all over.

Answer 6

Stress

Answer 7

Usually algerys to certain types of food, drink and/or stress. My wife gets them usually 2 minutes after I come home in the evenings.

Answer 8

It is the body's reaction to an allergen. It is caused by the production of histamines in the body to "combat" the invading allergen.

Answer 9

Usually it is caused by an allergy. Have you been around something different or ate something different? Benadryl usually helps. I would discuss this with my doctor as well.

Answer 10

Bad pork can also do this hubby had to go to the er for it one time they say pork for some reason it is not like any other meat when it goes bad.It will make you sick to very sick depending on how much you ate.

Answer 11

Allergic reaction, its usually from specific type of animals such as cats.